This patent was taken from the Google Patents database. The text has been proofread from the OCR that Google originates.

There are 3 formats used here: .pdf (original), .txt (clean text), and .brf (braille file). .brf is a file format used by the blind. See the "all files HTTP" link to access all three.

I have made every attempt to correctly discern every reference character set forth in the patent, and I am sure that by far the majority are correct. However,
because the OCR process is not entirely accurate, there may be some reference characters that are inconsistent or incorrect.

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